Quality control is a process by which a business ensures that product quality is maintained or improved. Learn whether quality control is a career option for you.

Types of Control Charts There are two main types of control charts that utilize the mean and standard deviation as some of the quality determinant parameters.

Control chart- a time-ordered plot of sample statistics, used to distinguish between random and nonrandom variability Control limits- the dividing lines between random and nonrandom deviations from ...

Often, however, “quality assurance” and “quality control” are used interchangeably, referring to the actions performed to ensure the quality of a product, service or process.

What Is Acceptable Quality Level (AQL)? The acceptable quality level or limit (AQL) is a crucial measure in quality control. It applies to products and is defined in ISO 2859-1 as the maximum ...